A. A. Sukhorukov, A. F. Sukhorukov
N. M. Tulajkov Samara Research Institute of Agriculture, ul. K. Marksa, 41, pos. Bezenchuk, Bezenchukskii r-n, Samarskaya obl., 446254, Russian Federation
Abstract. The aim of the research was to reveal genetic sources and donors of resistance to brown rust. The research was carried out in 2016–2017 in N.M. Tulajkov Samara Research Institute of Agriculture according to common methods against a natural infectious background, which caused an affection of susceptible genotypes up to 100%. We examined 250 variety samples, including 220 samples from VIR and 30samples from CIMMYT. Genes Lr 24, Lr 39, Lr 42, Lr 43, Lr 50 were highly effective in the Middle Volga region. Samples OKO07214, OKO7218, Byrd, BCO1007-7 from CYMMIT were very highly resistant to brown rust (the degree of damage was 0%). Samples STH-568, k-65621, Certo, k-65638, KS91WGRC-11, k-65615, KS92WGRC-16, k-65617, KS96WGRC-36, k-65618, Ransam, k-65236, K90WGRC-10, k-62377 from the VIR collection were also very highly resistant to this disease. CIMMYT samples CO07W245, F06659G6-1, F06659G10-1had high resistance (the degree of damage was 5%). Hybrid plants of the first generation created by the crossing of susceptible parents (the degree of damage was 60%) with samples resistant to brown rust (Byrd, CO07W245, BCO1007-7, Certo, KS92WGRC-16, KS93V206*2/T81, F06659G6-1) were resistant to brown rust (the degree of damage was 0%). Hybrids of the first generation, developed with the involvement of CIMMYT samples resistant to brown rust and varieties of local breeding, had winter hardness equal to the standard (7–8 score); the grain yield was 813–1080 g/m2, which was higher by 11–48% than that of Biryuza (“Turquoise”) standard. CIMMYT samples Byrd, CO07W245, F06659G6-1 are of the particular value for the breeding for resistance to brown rust; they exceeded the standard in the yield by 0.74, 0.16, 0.68 t/ha (the average yield over 2 years was 6.42, 5.84, 6.36 t/ha, respectively). Selected highly resistant samples in F1 with susceptible parents inherited resistance to brown rust according to the type of complete positive dominance. Brown resistance donors from the VIR collection are Certo (k-65638), KS92WGRC-16 (k-65617); the donors from CIMMYT collection are Byrd, KS93V206*2/T81, CO07W245, BCO1007-7, NE95589 / NE94632 // NE95510 (Abilene/Arapachoe).
Keywords: winter wheat; brown rust; resistance genes; sources of resistance; inheritance; crop productivity.
Author Details: A. A. Sukhorukov, Cand. Sc. (Agr.), senior research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); A. F. Sukhorukov, D. Sc. (Agr.), chief research fellow.
For citation: Sukhorukov A. A., Sukhorukov A. F. Source Material for Breeding Soft Winter Wheat on Resistance to Brown Rust Puccinia recondita Rob. ex Desm. f. sp. tritici. Dostizheniya nauki i tekhniki APK. 2018. Vol. 32. No. 11. Pp. 30–32 (in Russ.). DOI: 10.24411/0235-2451-2018-11107.